http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50166
--- Comment #2 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2011-08-25 13:40:57 UTC --- I've just checked that it still occurs with current mainline. I'm running a reghunt to identify the culprit. Rainer